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George Bush Intcntl

$387+ Cheap flights from Portugal to George Bush Intcntl (IAH)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — IAH
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Portugal to George Bush Intcntl

Keep the following information in mind while searching for Portugal to George Bush Intcntl flight deals. Data was last updated September 15, 2025.

Round-trip from

$702
(Mytrip)

One-way from

$387
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$817
From Portugal to Houston George Bush Intcntl
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One-way flight from Portugal to Houston George Bush Intcntl
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Highest demand for flights based on searches. 14% potential increase in price ($150 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Portugal to George Bush Intcntl

Cheapest flights from Portugal to George Bush Intcntl
Explore the most affordable flight options available from Portugal to George Bush Intcntl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Mytrip deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/147:05 amLIS - IAH
2 stops22h 08mMultiple Airlines
Sat 11/157:00 amIAH - LIS
2 stops22h 40mMultiple Airlines
Deal found 9/13$702
This AirNGo deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/205:00 amLIS - IAH
1 stop14h 15mKLM
Sat 9/273:30 pmIAH - LIS
1 stop13h 25mKLM
Deal found 9/12$721
This American Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/810:30 amLIS - IAH
2 stops28h 04mAmerican Airlines
Mon 11/243:50 pmIAH - LIS
1 stop17h 05mAmerican Airlines
Deal found 9/13$723
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:15 amLIS - IAH
1 stop16h 13mAmerican Airlines
Tue 12/93:47 pmIAH - LIS
2 stops19h 53mAmerican Airlines
Deal found 9/15$724
This British Airways deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/211:05 amLIS - IAH
1 stop16h 25mBritish Airways
Sun 12/76:10 pmIAH - LIS
2 stops33h 40mBritish Airways
Deal found 9/15$725
This KLM deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/203:35 pmLIS - IAH
1 stop27h 40mMultiple Airlines
Sun 10/265:05 pmIAH - LIS
1 stop17h 05mMultiple Airlines
Deal found 9/15$728
This British Airways deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/13:50 pmLIS - IAH
1 stop28h 15mBritish Airways
Fri 12/1211:18 amIAH - LIS
2 stops40h 37mBritish Airways
Deal found 9/15$730
This Air France deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/106:50 pmLIS - IAH
1 stop24h 45mAir France
Thu 10/233:50 pmIAH - LIS
1 stop13h 25mAir France
Deal found 9/14$734
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/811:25 amLIS - IAH
2 stops18h 34mDelta
Mon 11/246:40 pmIAH - LIS
2 stops16h 50mDelta
Deal found 9/15$735
This British Airways deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/306:40 pmLIS - IAH
2 stops34h 47mBritish Airways
Thu 12/111:19 pmIAH - LIS
2 stops19h 26mBritish Airways
Deal found 9/15$736

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portugal to George Bush Intcntl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Portugal to Houston George Bush Intcntl Airport that are best for you.

Fly from

Portugal

Fly to

George Bush Intcntl

Route

Depart

Return

Price

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Sat 9/20

5:00 am-1:15 pm

1 stop14h 15m

Houston George Bush Intcntl

Sat 9/27

3:30 pm-10:55 am

1 stop13h 25m

$721

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Sat 11/8

10:30 am-11:50 am

1 stop31h 20m

Houston George Bush Intcntl

Mon 11/24

3:50 pm-2:55 pm

1 stop17h 05m

$723

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Tue 12/2

11:05 am-9:30 pm

1 stop16h 25m

Houston George Bush Intcntl

Tue 12/9

4:32 pm-2:45 pm

2 stops16h 13m

$725

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Wed 12/3

11:15 am-9:28 pm

1 stop16h 13m

Houston George Bush Intcntl

Tue 12/9

4:45 pm-5:40 pm

2 stops18h 55m

$725

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Sat 11/8

10:30 am-9:30 pm

1 stop17h 00m

Houston George Bush Intcntl

Mon 11/24

4:32 pm-2:55 pm

2 stops16h 23m

$725

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Wed 12/3

11:15 am-9:28 pm

1 stop16h 13m

Houston George Bush Intcntl

Mon 12/8

3:50 pm-12:05 pm

1 stop14h 15m

$725

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Fri 12/5

11:05 am-9:28 pm

1 stop16h 23m

Houston George Bush Intcntl

Thu 12/11

1:19 pm-2:45 pm

2 stops19h 26m

$725

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Wed 12/3

11:15 am-9:28 pm

1 stop16h 13m

Houston George Bush Intcntl

Sun 12/7

9:50 pm-12:05 pm

1 stop32h 15m

$725

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Fri 12/5

8:20 am-8:32 am

2 stops30h 12m

$387

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 12/4

4:50 pm-11:13 pm

2 stops36h 23m

$393

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 13 results
1
2

Best time to book a flight from Portugal to George Bush Intcntl

Have a flexible travel schedule? Discover the best time to fly to George Bush Intcntl from Portugal with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portugal to Houston George Bush Intcntl Airport
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing George Bush Intcntl

Get insights into the airlines that provide service to George Bush Intcntl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to George Bush Intcntl. Reviews last updated September 15, 2025.
Peruse reviews from past customers who have flown with British Airways from Portugal to Houston George Bush Intcntl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,361 reviews

Comfort

6.7

Food

6.3

Overall

6.7

Boarding

6.9

Crew

7.6

Entertainment

6.4

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.
British Airways
6.7
Okay
7,361 reviews
British Airways
6.7
Okay
7,361 reviews

Comfort

6.7

Food

6.3

Overall

6.7

Boarding

6.9

Crew

7.6

Entertainment

6.4

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.

Related info for your journey

Find useful and relevant information for your journey from Portugal to George Bush Intcntl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Portugal to Houston George Bush Intcntl Airport?

    KLM, American Airlines, and British Airways can get you from Portugal to Houston George Bush Intcntl Airport in just under 14h 15m. Your travel time can differ by up to 17h 05m. Portugal and Houston George Bush Intcntl Airport are separated by a distance of 4767 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Portugal to George Bush Intcntl that include hotel bookings?

    Yes. In addition to deals on Portugal to George Bush Intcntl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portugal to George Bush Intcntl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portugal to George Bush Intcntl.

  • Can I find deals for business class flights from Portugal to George Bush Intcntl?

    Yes. Cheapflights offers flight deals from Portugal to George Bush Intcntl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portugal to Houston George Bush Intcntl Airport?

    Currently, August is the cheapest month in which you can book a flight from Portugal to Houston George Bush Intcntl Airport (average of $241). Flying from Portugal to Houston George Bush Intcntl Airport in March is currently the most expensive (average of $339). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Houston George Bush Intcntl Airport?

Book flights to Houston George Bush Intcntl Airport if you plan to visit one of these locations
Montgomery
Spring
Jersey Village
Humble
The Woodlands
Conroe
Tomball
Katy
Cypress

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Alternative routes for Portugal to George Bush Intcntl

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Top airline flying from Portugal to George Bush Intcntl

Discover the top airline that operate flights from Portugal to George Bush Intcntl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$682Average$861FlexibilityNo cancel feeOn-time70%

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